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If Jesus comes while we are still alive on this earth, we are likely to experience an incredible sight!
We know from the Bible (I Thessalonians 4), that Jesus will come through the air...
and first the dead in Christ will rise to meet Jesus in the air ...
Then those who are alive at the time will be changed in the blink of an eye into new bodies (no more flesh, no more physical pain, no more emotions of the flesh) and they will arise to meet everyone in the air (I Corinthians 15) ...
And all will be translated to "the new Jerusalem, the new heaven and new earth wherein dwelleth righteousness!" (Revelation 21)
We will be saved from the wrath of God through HIM. (I Thessalonians 5)
We are not appointed to wrath ... we will not go through the great tribulation (unless we somehow depart from the faith) where the angels of God pour out the various troubles on this present earth. (Revelation 8, 11)
After the great tribulation, the present heaven and earth will be then destroyed by God. (II Peter 3)
In the new heaven and new earth there will be only righteousness.
We will have new bodies which are not subject to physical pain, nor sorrow, nor emotions of this flesh which can cause so much grief.
It is wonderful to think on these things and to know these things from the Bible.